On Wed, Aug 8, 2018 at 11:32 AM, Yifeng Sun <[email protected]> wrote:
> Introduce a new test that doesn't setup native erspan v2 tunnels but sends > simulated raw packets. > This test is supposed to only run for kernel version from 4.4.x to 4.15.x. > > Signed-off-by: Yifeng Sun <[email protected]> > --- > tests/system-traffic.at | 44 ++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 44 insertions(+) > > diff --git a/tests/system-traffic.at b/tests/system-traffic.at > index 44669f8..64b37df 100644 > --- a/tests/system-traffic.at > +++ b/tests/system-traffic.at > @@ -670,6 +670,50 @@ AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "IP > 172.31.1.100 > 172.31.1.1: GRE > OVS_TRAFFIC_VSWITCHD_STOP > AT_CLEANUP > > +AT_SETUP([datapath - ping over erspan v2 tunnel by simulated packets]) > +OVS_CHECK_KERNEL(4, 4, 15) > + > +OVS_TRAFFIC_VSWITCHD_START() > +AT_CHECK([ovs-vsctl -- set bridge br0 other-config:hwaddr=\"f2:ff: > 00:00:00:01\"]) > +ADD_BR([br-underlay], [set bridge br-underlay other-config:hwaddr=\"f2:ff: > 00:00:00:02\"]) > + > +AT_CHECK([ovs-ofctl add-flow br0 "actions=normal"]) > +AT_CHECK([ovs-ofctl add-flow br-underlay "actions=normal"]) > + > +ADD_NAMESPACES(at_ns0) > + > +dnl Set up underlay link from host into the namespace using veth pair. > +ADD_VETH(p0, at_ns0, br-underlay, "172.31.1.1/24", f2:ff:00:00:00:03) > +AT_CHECK([ip addr add dev br-underlay "172.31.1.100/24"]) > +AT_CHECK([ip link set dev br-underlay up]) > + > +dnl Set up tunnel endpoints on OVS outside the namespace and simulate a > native > +dnl linux device inside the namespace. > +ADD_OVS_TUNNEL([erspan], [br0], [at_erspan0], [172.31.1.1], [ > 10.1.1.100/24], [options:key=1 options:erspan_ver=2 options:erspan_dir=1 > options:erspan_hwid=0x7]) > + > +ip netns exec at_ns0 tcpdump -U -i p0 -w p0.pcap & > +sleep 1 > + > +dnl First, check the underlay > +NS_CHECK_EXEC([at_ns0], [ping -q -c 3 -i 0.3 -w 2 172.31.1.100 | > FORMAT_PING], [0], [dnl > +3 packets transmitted, 3 received, 0% packet loss, time 0ms > +]) > + > +dnl Okay, send raw arp request and icmp echo request. > +ovs-ofctl -O OpenFlow13 packet-out br-underlay "in_port=1 packet= > f2ff00000002f2ff00000003080045000052373d4000402fa89cac1f0101 > ac1f0164100088be00000006200000016f54b41700008078ffffffffffff > f2ff0000000408060001080006040001f2ff000000040a0101010000000000000a010164 > actions=normal" > + > +sleep 1 > +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "0806 0001 0800 0604 0002 > f2ff 0000" 2>&1 1>/dev/null]) > +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "0a01 0164 f2ff 0000 0004 > 0a01 0101" 2>&1 1>/dev/null]) > + > +ovs-ofctl -O OpenFlow13 packet-out br-underlay "in_port=1 packet= > f2ff00000002f2ff0000000308004500009287e14000402f57b8ac1f0101 > ac1f0164100088be0000000520000001144cd5a400008078f2ff00000001 > f2ff0000000408004500005c38d640004001eb640a0101010a0101640800 > 5e57585f0001df6c6b5b0000000045bc0500000000001011121314151617 > 18191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f > actions=normal" > The above packet hex is already encapsulated with ERSPAN (https://www.gasmi.net/hpd/ can help decode) So this packet does not exercise the ERSPAN implementation in OVS. Can we generate packet from br0 instead of br-underlay? Thanks William > + > +sleep 1 > +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "IP 172.31.1.100 > > 172.31.1.1: GREv0, .* length 126" 2>&1 1>/dev/null]) > + > +OVS_TRAFFIC_VSWITCHD_STOP > +AT_CLEANUP > + > AT_SETUP([datapath - clone action]) > OVS_TRAFFIC_VSWITCHD_START() > > -- > 2.7.4 > > _______________________________________________ > dev mailing list > [email protected] > https://mail.openvswitch.org/mailman/listinfo/ovs-dev > _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
